As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BEGAN TAKE-OFF ROLL AND WITHIN THE FIRST 500 FT SIC NOTED AN INVALID AIRSPEED INDICATION. CREW ABORTED TAKE-OFF @ ABOUT 70 KTS AND RETURNRD TO RAMP.UPON INVESTIGATION IT WAS FOUND THAT SOME DEBRIS WAS CAUSING THE BLOCKAGE THAT WAS FROM THE WORN PITOT COVERS.TO CORRECT ISSUE NEW COVERS WERE INSTALLED.